Kalie Reid returns with this fresh new fantasy, intricately woven with a magic completely its own.

In a glittering world of Guilds fueled by magic and loyalty, selling secrets is one way to get ahead - or lose your life.

Saskia has spent her whole life preparing to take on her father's role as Guildmaster of the Cartographer's Guild, a step that has come sooner than she expected after a mysterious illness has left her father bedridden. Her Guild is one of many operating in secret and using rendered copper to craft their wears - copper made by the notoriously tight-lipped Coppersmiths.

But when the Coppersmiths offer Saskia an antidote for her father's sickness in exchange for the Cartographer's Guild's most guarded secret, she must unravel her father's involvement with the mysterious group.

With only her distractingly charming childhood friend Nicholas to help, Saskia sets off to find the antidote before the clock runs out on her father's life - or before the Coppersmiths decide she must take up more than just the title of Guildmaster to atone for her father's sins.